| Presentation | 2021-06-23 A Study on Throughput Improvement of Adaptive Modulation and Coding based HARQ in 5G URLLC Akira Hasegawa, Eiji Okamoto, Manabu Mikami, Hitoshi Yoshino, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Ultra-reliable and low latency communications (URLLC) is one of the main scenarios for the 5th generation mobile communications system (5G), whose use cases are time-sensitive applications such as autonomous driving. In conventional URLLC transmission, the modulation index and coding rate are usually limited to lower values to suppress the transmission error rate, and subsequently, the throughput performance is also limited. Therefore, in this paper, we propose a new URLLC transmission method to achieve both high reliability and low latency in wireless transmission by using adaptive modulation and coding (AMC)-based open-loop hybrid automatic repeat request (HARQ), which is a balanced combination of AMC and HARQ. The proposed method uses thresholds for AMC switching based on mutual information. By using the appropriate thresholds, we show that the proposed AMC-HARQ satisfies the requirements of URLLC and improves the throughput performance under the limited frequency band by numerical simulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / URLLC / adaptive modulation and coding / hybrid automatic repeat request / mutual information / autonomous driving |
| Paper # | RCS2021-33 |
| Date of Issue | 2021-06-16 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2021/6/23(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Fumihide Kojima(NICT) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) |
| Secretary | Fumihide Kojima(Panasonic) / Toshihiko Nishimura(NEC) / Tomoya Tandai |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Throughput Improvement of Adaptive Modulation and Coding based HARQ in 5G URLLC |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | URLLC |
| Keyword(3) | adaptive modulation and coding |
| Keyword(4) | hybrid automatic repeat request |
| Keyword(5) | mutual information |
| Keyword(6) | autonomous driving |
| 1st Author's Name | Akira Hasegawa |
| 1st Author's Affiliation | Nagoya Institute of Technology(NIT) |
| 2nd Author's Name | Eiji Okamoto |
| 2nd Author's Affiliation | Nagoya Institute of Technology(NIT) |
| 3rd Author's Name | Manabu Mikami |
| 3rd Author's Affiliation | SoftBank corporation(SoftBank corp.) |
| 4th Author's Name | Hitoshi Yoshino |
| 4th Author's Affiliation | SoftBank corporation(SoftBank corp.) |
| Date | 2021-06-23 |
| Paper # | RCS2021-33 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-72 |
| Page | pp.pp.25-30(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-06-16 (RCS) |